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(No Model.) v 3 Sheets-Sheet 1.

- F. ROBERT.

GAR COUPLING.

No. 414,920. Patented Nov. 12, 1889.

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(No Model.) 3 Sheets-Sheet 2. -F. ROBERT.

- OAR COUPLING. No. 414,920. Patented Nov. 12, 1889.

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3 Sheets-. 31 F BERT. GAB PLING -15 (No Model.)

No! 414,920. Patented Nov. 12, 1889.

NESSE v VENTOR M BY i ATTORNEY UNITED STATES FREDERICK ROBERT,

on NEW YORK, N. Y.

' CAR-COUPLING.

SPECIFICATION forming part of Letters Patent No. 414,920, dated November 12, 1889. Application filed May 8, 1889- Serial No. 310,023. (No model.)

.T 0 all whom it may concern.-

Be it known that I, FREDERICK ROBERT, of the city, county, and State of New York, have invented a new and useful Improvement in Car-Couplers, of which thefollowin g is a full, clear, and exact description.

Myinvention relates to an improvement in car-couplers of the vertical-plane type, and has for its object the simplification of construction over others of this class by doing away with all machine-Work and at the same time to provide large bearing-surfaces. on which the knuckle revolves; also to provide a means for taking up the buffing strain on the side of the draw-head in a novel manner.

A further object of the invention is to provide. a locking device having a larger bearingsurface than usual, and one in which the amount of lift of the pin required in unlocking the knuckle is very much reduced.

The invention consists in the novel construction and combination of the several parts, as will be hereinafter more fully set forth, and pointed out in the claims.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar letters and figures of reference indicate corresponding parts in all the views.

Figure 1 is a plan-view of the draw-head. Fig. 2 is a section on line so 00 of Fig. 1, illustrating the coupling-pin in a position to permit of uncoupling. Fig. 3 is a similar section illustrating the coupling-pin as in a coupled position. Fig. 4 is a plan view of the knuckle, and Fig. 5 is a rear view of the knuckle. Fig. 6 is a horizontal section through the drawhead, with the knuckle in its closed position.

In carrying out the invention the draw-head 10 is provided with the usual horn 11, a concave front face, and an interior chamber. In the upper and lower face of the draw-head, at the side opposite to that carrying the horn, arced openings 12 are produced, the lower opening being in vertical alignment with the upper opening, and between the arced openings and a point ator near the center of the draw-head top and bottom vertically-aligning openings 13 are made, preferably rectangular, and adapted to receive the coupling-pin. Upon the outer face of that side of the drawhead containing the arced openings, at the top and bottom of said face, recesses 16 are respectively produced, the walls of which recesses are adapted to receive the buffing strain of the knuckle. The recesses 16 extend from the front of the draw-head quite a distance to the rear, as shown in Fig. 1.

The knuckle comprises a body B, from the forward end of which two spaced hooks B are horizontally projected, and a wing G, extending horizontally from its inner end. In the body of the knuckle a perpendicular arced slot 17 isformed, through which, when the knuckle is entered into the draw-head, a pivotpin 18 is passed, said pin being also made to pass through the arced openings in thedrawhead, as best illustrated in Figs. 2 and 3. This pin does not entirely fill the slot in the knuckle. In the act of opening'and closing the knuckle it moves in said slot and forms bearing and guide surfaces for the same.

The pivot-pin 18 necessarily conforms in cross-section to the contour of the knuckleslot and the draw-head openings receiving it. The wing C of the knuckle is provided with a central horizontally-located recess extending from its inner side to a point nearits opposite side, as indicated by the dotted lines in Fig. 4, and as shown in elevation in Fig. 5. Thus the wing (J is virtually divided into two sections cl and cl.

The coupling-pin 19 is provided with two spaced recesses 20 and 21 in one side, the distance between the recesses being about equal to the space intervening the opposed walls of the wing-sections d and d. The recesses in the coupling-pin are so located that when the pin is elevated, as shown in Fig. which is the uncoupling position, each recess will receive one wing-section of the knuckle, whereby the said knuckle is free to revolve upon its pivot-pin and thereby effect an uncoupling with an opposed draw-head. hen the coupling-pin is dropped, as shown in Fig. 3, the recesses of the pin pass out of registry with the wing-sections, and the said sections bear against the solid portion of the couplingpin, whereby the said coupling-pin sustains all the pulling strain.

At the intersection of the hooks of the knuckle with the body of the same at top and bottom a lug or boss 22 is formed, as is best illustrated in Fig. 4:, the said lug or boss being of sufficient length to neatly enter the drawhead recesses 16, heretofore described, and the opposed or facing walls of the bosses and the draw-head recesses are so formed that the two will contact simultaneously at every point throughout their length.

It will be observed from this construction that a large extent of butting-surface is obtained, and that the bufling strain is sustained by the outer surface of the head.

I desire it to be understood that the bearing-surfaces of the coupling-pin 19 and the faces of the recesses 16, formed in the drawhead for taking the buffing blow, are preferably coincident with a radial line drawn from the center of revolution of the knuckle.

Having thus described my invention, I claim as new and desire to secure byLetters Patent-- 1. lhe combination, with a draw-head, of a knuckle provided with an arced slot, and a pivot-pin capable of passing through the draw head and the knuckle-slot, substantially as shown and described.

2. The combination, with a draw-head having arc-shaped openings therein, of a knuckle provided with an arced slot registering with the opening in the draw-head, and a pivotpin passing through the draw-head openings and the knuckle-slot, substantially as and for the purpose specified.

The combination, with a draw-head pr0- vided with vertically-aligning arc-shaped openings and a knuckle provided with an arc shapedslot registering with the openings in the draw-head, of awing projected from the inner end of the body of the knuckle and horizontally slotted, a pivot-pin passing through the draw-head opening and the knuckle-slot, and a coupling-pin provided with two spaced recesses to receive the wing of the knuckle, all combined for operation, substantially as shown and described.

4. In a car-coupler,adraw-head of the type described provided with a bufiing recess in one side, and arc-shaped openings, and polygonal coupling-pin openings produced in its upper and lower faces, the lower opening being in vertical registry with the upper opening, substantially as and for the purpose specified.

5. The combination, with a draw-head of the type described provided with recesses in one side face at the front, of a knuckle held to revolve in the draw-head, provided with a boss or lug capable of entering each of the draw-head recesses, substantially as described, whereby the buffing strain is sustained by the draw-head, as set forth.

FREDERICK ROBERT.

Witnesses:

EDWD. EASTWICK, J r., (3. SEDGWICK. 

